Corundum Thermocouple Protection Tube: A Key Player in the Field of High-temperature Measurement
In the fields of industrial production and scientific research, accurately measuring the temperature of high-temperature environments is of vital importance, and the thermocouple protection tube plays an indispensable role in this regard. The corundum thermocouple protection tube, with its unique properties, is gradually becoming the preferred choice in numerous high-temperature measurement scenarios.
Corundum is a crystalline form of aluminum oxide (Al₂O₃), possessing extremely high hardness, excellent high-temperature resistance, and chemical stability. These properties endow the corundum thermocouple protection tube with outstanding application advantages. In the field of high-temperature measurement, such as in industries like metallurgy, chemical engineering, and ceramics, the temperature often reaches up to thousands of degrees Celsius, which ordinary materials are difficult to withstand in such harsh environments. However, the corundum thermocouple protection tube can remain stable under such high temperatures, ensuring that the thermocouple can accurately measure the temperature and providing key data support for the precise control of the production process.
From practical application cases, in the reformer of the chemical industry, high-purity corundum tubes are applied to the upper temperature measurement points, greatly increasing the service life of the high-temperature thermocouples in the reformer, and becoming an ideal material for high-temperature protection tubes. This application fully demonstrates the reliability of corundum tubes in high-temperature environments. In the application of precious metal thermocouples, high-alumina ceramic tubes or corundum tubes are mostly used as outer protection tubes. Such protection tubes can ensure that the precious metal wire material - platinum-rhodium wire is not contaminated by the medium in a high-temperature environment. Although their vibration resistance and compression resistance are poor, through improving the assembly process, such as conducting tests with different assembly schemes, a feasible assembly process is finally determined, improving the supply quality of products and further expanding the application of corundum tubes in high-temperature measuring instruments.
With the continuous progress of science and technology, the research on corundum thermocouple protection tubes is also continuously deepening. On the one hand, researchers are committed to further optimizing the performance of corundum tubes. For example, by improving the preparation process, the vibration resistance and compression resistance of corundum tubes are enhanced to meet the requirements of more complex working conditions. On the other hand, the composite application of corundum tubes with other materials is explored, and new composite material protection tubes are developed to improve the overall performance. For instance, the composite of corundum with materials such as silicon carbide is studied. By combining the advantages of both, protection tubes with higher temperature resistance, erosion resistance and good mechanical properties are developed.
Corundum thermocouple protection tubes have achieved remarkable achievements in the field of high-temperature measurement and play an important role in many industries. With the continuous innovation and development of technology, it is believed that corundum thermocouple protection tubes will demonstrate even more powerful performance in future industrial production and scientific research activities, bringing more breakthroughs and progress to the field of high-temperature measurement.